Grate



Patented .lime 5, 1923.

*aan* s @TES J'oHN A. s'rAcKHousn, or" DOVER, NEw'JnnsnY.

Application filed. April 8, 1922. Serial 150,550,912".

TocvZZ whomz't may concern.'

Be it known that l, JOHN A. STAGKHOUSE, a citizen of the United States, residin at Dover, in the county of Morris and tate of New Jersey, have invented a new and useful Grate, of which the following is a specification. l

The device forming the subject matter of this application is adapted to be used in a bakers oven, and embodies an improvement over the structure shown in my Patent No. 857,210, granted on the 18th day of June, 1907.

ln the device shown in the patent above identified, a grate is located within a depending ring. The grate sets so far down in the ring that the combustible material on the grate comes into contact with the ring, and it is claimed by some that, owing to this circumstance, the ring burns out sooner than. it should. This alleged shortcoming in the old device is cured in the structure forming the subject matter of this application, one object of the invention thus being made manifest. Another object of the invention is to provide no-vel means whereby movement may be imparted to the grate.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

I do no-t bind myself to the specific details depicted and described, since a mechanic may make changes in the precise form shown, within the scope of what is claimed, without departing from the spirit o-f the invention or avoiding the charge of infringement.

In the accompanying drawings Figure 1 shows in top plan, a device constructed in accordance with the invention; Figure 2 is a cross section wherein the device appears assembled with a bakers oven; Figure 3 is a cross section on the 'line 3-3 of Figure 1; Figure 4 is a fragmental perspective, showing a portion of the carrying plate.

The numeral 1 marks the chamber of a bakers oven, the ash pit appearing at 2, the chamber being separated from the ash pit by a floor 8 projecting from a rear wall 4 having a doorway 5 communicating with the ash pit, the doorway being adapted to be closed by a door 6.

A recess 7 is fashioned in the floor 3, a flange 8 projecting from the ioor, into the recess, at the lower end thereof. A carrying plate 9 fits in thelrecess and is supported.

on the flange 8, cement'lO' being interposed between the plate and the flange, if desired. The plate 9 has a depending annular sleeve 11. Gppositely disposed circumferentially elongated openings 12 are formed in the sleeve 11. Notches 14 in the plate 9 communicate with the openings 12.

A grate 17 is located within the sleeve 11 and has trunnions 18 insertable into the openings 12, through the notches 14. Adjacent to its rear edge, the grate 17 carries a depending arm 19 terminating in a socket 20, whereinto one end o-f a shaker bar 21 is inserted, the shaking bar passing through the door way 5. Clearly, through the instrumentality of the shaker bar 21, the grate 17 may bey tilted on the trunnions 18. Circumferential oscillating movement may likewise be imparted to the grate 17, the trunnions 18 moving in the openings 12.

It remains to point out some of the distinguishing characteristics of the present invention, and in this connection it is to be observed that the upper edges 15 of the openings 12 are flush with the under surface 16 of the plate 9, the trunnions 18 being of substantially the same diameter as the height 40 of the opening 12, a thickness of the grate 17 being practically equal to the diameter of the trunnions 18. rllhe result is that the upper surface 23 of the grate 17 is disposed in a commonplane with the lower surface 16 o-f the plate 9, as shown in Figure 3. None of the combustible material on the grate 17 comes into contact with the depending sleeve 11, and the sleeve, therefore, never is burned out.

lf desired, a lug 42 may project inwardly from the sleeve 11, the trunnions 18 being solocated on the grate 17 that the grate will be overbalanced, and will tend to rest o-n the lug 42.

l claim 1. ln a device of the class described, a plate having a depending sleeve, the sleeve being provided with circumferentially elongated openings, and the plate having notches communicating with the openings; and a grate within the sleeve, the grate being supplied with trunnions located in the openings and movable therein to permit a tilting of the grate and a circumferential oscillation of the grate, the trunnions being insertable into the openings by way of the notches, the upper edges of the openings being flush with i dispose the upper surface of the grate in a common plane with the lower surface of the plate, whereby none of the Combustible Inaterall on the` grate will come into Contact with the sleeve.' f v 2. Av Adevice of Vthelass 'dc-ascribedgl-cron-y strncted as set forth in claiinl, and vfurther charaoterizedby the pro-vision of adependingarm 'on the grate, the arm having a socket; and a shaker bar having one end 15 mounted removably in the socket.

In testimony that I claim the foregoing as my own, I have hereto aixed my signature in the presence of two witnesses.

"JOHN A. srAoKHoUsns Vitnesseszv MASON B. LAWfro-N,

F; 1L. SEARCH. y 

